They actually also have OS X drivers! These are the touch screens im using for my tablet mod. They work pretty well, but are about .25" thick, so don't think about installing it without thickening your notebook (unless you're trying to tabletify it like I am).
Their Mac drivers are much less developed than their windows/linux drivers. you've 2 options: 1: when you touch the screen, it counts as a click (u can drag the cursor around, but it'd be like moving a mouse around with a button clicked) and 2: when you let go of the scree it counts as a click.
So overall, the hardware is nice and accurate, but the drivers are a bit crippled. Still the best option for DIY projects. It's essentially a slab of glass with the given dimensions with a small ribbon cable that sticks out of the side. That ribbon plugs into a small controller and the controller plugs into a usb port.
Also, their touch screens wont exactly fit the MBP, as none of their screens are wide screen dimensions. Doesn't mean you can't use it, but you will have a but of untouchable screen space🙁
Best of luck to ya!